package com.whfz.reggie.controller;


import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.whfz.reggie.common.Contants;
import com.whfz.reggie.common.R;
import com.whfz.reggie.pojo.Employee;
import com.whfz.reggie.service.EmployeeService;
import lombok.extern.slf4j.Slf4j;
import org.apache.commons.lang.StringUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.util.DigestUtils;
import org.springframework.web.bind.annotation.*;

import javax.servlet.http.HttpServletRequest;
import java.time.LocalDateTime;

/**
 * <p>
 * 员工信息 前端控制器
 * </p>
 *
 * @author lys
 * @since 2022-06-01
 */
@Slf4j
@RestController
@RequestMapping("/employee")
public class EmployeeController {

    @Autowired
    EmployeeService employeeService;

    /**
     * 员工登录
     *
     * @return
     */
    @PostMapping("/login")
    public R<Employee> login(HttpServletRequest request, @RequestBody Employee employee) {
        //1、将页面提交的密码password进行md5加密处理
        String password = employee.getPassword();
        password = DigestUtils.md5DigestAsHex(password.getBytes());

        //2、根据页面提交的用户名username查询数据库
        LambdaQueryWrapper<Employee> queryWrapper =  new LambdaQueryWrapper<>();
        queryWrapper.eq(Employee::getUsername,employee.getUsername());
        Employee emp = employeeService.getOne(queryWrapper);
        //3、如果没有查询到则返回登录失败结果
        if (emp==null){
            return R.error("用户名不存在");
        }
        //4、密码比对，如果不一致则返回登录失败结果
        if (!emp.getPassword().equals(password)){
            return R.error("密码错误");
        }
        //5、查看员工状态，如果为已禁用状态，则返回员工已禁用结果
        if (emp.getStatus()==0){
            return R.error("账号已禁用");
        }
        //6、登录成功，将员工id存入Session并返回登录成功结果
        request.getSession().setAttribute(Contants.SESSION_EMPLOYEE,emp.getId());
        return R.success(emp);

    }

    /**
     * 安全退出
     * @param request
     * @return
     */
    @PostMapping("/logout")
    public R<String> logout(HttpServletRequest request){
        //清理session中保存的员工id
        request.getSession().removeAttribute(Contants.SESSION_EMPLOYEE);
        return R.success("退出成功");
    }

    /**
     * 保存员工信息
     * @param employee
     * @return
     */
    @PostMapping
    public R<String> save(@RequestBody Employee employee, HttpServletRequest request){
        employee.setPassword(DigestUtils.md5DigestAsHex("123456".getBytes()));
        //自动填充
//        employee.setCreateTime(LocalDateTime.now());
//        employee.setUpdateTime(LocalDateTime.now());
//        employee.setUpdateUser((Long) request.getSession().getAttribute(Contants.SESSION_EMPLOYEE));
//        employee.setCreateUser((Long) request.getSession().getAttribute(Contants.SESSION_EMPLOYEE));
        employeeService.save(employee);
        return R.success("成功");
    }

    /**
     * 分页查询员工信息
     * @param page
     * @param pageSize
     * @param name
     * @return
     */
    @GetMapping("/page")
    public R<Page> page(int page, int pageSize,String name){
        log.info("page={},pageSize={},name={}",page,pageSize,name);
        //构造分页构造器
        Page pageInfo = new Page(page,pageSize);
        //构造条件构造器
        LambdaQueryWrapper<Employee> QueryWrapper = new LambdaQueryWrapper();
        //添加过滤条件
        QueryWrapper.like(StringUtils.isNotEmpty(name),Employee::getUsername,name);
        QueryWrapper.orderByDesc(Employee::getCreateTime);
        //查询
        employeeService.page(pageInfo,QueryWrapper);
        return R.success(pageInfo);
    }

    /**
     * 根据id修改员工信息
     * @param employee
     * @param request
     * @return
     */
    @PutMapping
    public R<String> upateById(@RequestBody Employee employee,HttpServletRequest request){
        //自动填充
//        employee.setUpdateUser((Long) request.getSession().getAttribute(Contants.SESSION_EMPLOYEE));
//        employee.setUpdateTime(LocalDateTime.now());
        employeeService.updateById(employee);
        return R.success("修改成功");

    }

    /**
     * 根据员工id查询
     * @param id
     * @return
     */
    @GetMapping("/{id}")
    public R<Employee> getById(@PathVariable Long id){
        Employee employee = employeeService.getById(id);
        if (employee!=null){
            return R.success(employee);
        }
        return R.error("未能查询到员工信息");

    }

}

